login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A267281 Number of nX(n+2) arrays of permutations of n+2 copies of 0..n-1 with every element equal to or 1 greater than any southwest or northwest neighbors modulo n and the upper left element equal to 0. 0
1, 35, 574, 12214, 330969, 12954512, 912215513 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Superdiagonal 2 of A267278.

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for n=4

..0..0..0..1..1..2....0..2..1..0..3..1....0..0..2..2..3..3....0..3..2..1..3..2

..3..0..1..1..2..2....1..1..3..2..0..3....3..1..1..2..2..3....3..1..0..2..1..3

..3..0..0..2..2..3....0..2..2..3..2..0....0..0..1..1..3..2....1..3..2..0..3..1

..3..3..1..1..3..2....1..1..3..2..0..3....0..0..1..2..1..3....2..1..0..2..0..0

CROSSREFS

Cf. A267278.

Sequence in context: A219370 A278674 A219468 * A114342 A208617 A010951

Adjacent sequences:  A267278 A267279 A267280 * A267282 A267283 A267284

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 12 2016

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 22 14:59 EDT 2022. Contains 353957 sequences. (Running on oeis4.)